Alfred melchior



A. MELC'HIOR. SHEEP SEEARING MACHINE.

(No Model.)

. Patented July 5, 1892.

W/TNESSES /NVENTOH ATTORNEYS UNITED STATES PATENT EErcE.

.ALFRED MELCHIOR, OF SYDNEY, NEW SOUTH FALES.

SHEEP-SHEARING MACHINE.

SPECIFICATION forming part of Letters Patent No. 478,286, dated July 5, 1892. Application filed December 3, 1891. Serial No. 4132,958. (No model.)

To @ZZ whom, t may concern: Y,

.Be it known that I, ALFRED MELcHIoR, mechanical engineer, a subject of the Queen of Great Britain, residing at Sydney, in the British Colony of New South Wales, have inventednewandusefullmprovelnentsinSheep- Shearing Machines, of which the following is a specification.

This invention has for its object the construction of a cheap, handy, and convenient sheep-shearing machine to be actuated by compressed air or similar fluid-pressure, and these improvements refer principally to such machines in which a vibrating lever (of the irst order or class) reciprocates a cutter above and in contact with a comb.

With these objects in view my invention consistsin certain parts and combinations thereof hereinafter described and `claimed.

In order that this invention may be clearly understood, reference will now be made to the drawings herewith, in which- Figure lis a longitudinalsectional elevation of a sheep-shearing machine constructed according to this invention. Figs. 2 and 3 are cross-sections of same on lines a a and b b, respectively, in Fig. l; and Fig. 4 is a plan of same with upper casing or coverremoved.

A is the frame or casing, to the back end of which the cylinder B is secured. This cylinder has a rotary piston or spindle C, having a crank-pin C2, with a roller C2 thereon, which roller takes within jaw D of vibrating lever D, the other end or nose D2 of said lever pressing upon cutter E in contact with comb F and pressed thereon by a tension-spring G. The cylinder B has a supply-port B and exit or discharge orifices B2 and between these on its inside 'peripheral face it has a gradual encroachment upon its cylindrical form, hereinafter called the closer, reaching in a curve from point B3 near the discharge-orifices to point B4 at the supply-port. Upon the spindle 0 a holder O is xed, such holder being a hollow frustuln of a sphere, with extending pins or pintles C4, taking into grooves C5 in inner periphery of annulus or ring C. Hinged to ring C6 by means of pins C7 are wings or leaves C5, adapted to fold into spaces C in said ring and to spread and form a tight joint at their hinge and at the periphery of cylinder B. The ring C5 forms a tight joint sidewise between the face B.5 of the cylinder B and the Y screwed-down cover B5, and it has play to adjust itself to these ysurfaces by reason of its free riding upon, frusto-spherical holder C while revolving it by.pins C4 in its grooves C5. The spindle C has outer bearing B7 in cover Bi and an inner bearing B8 on cylinder B and it extends outwardly and finishes with ascrew-driver nick C, by which trials o f movement may be made. The lever D is fulcrumed through boss D5 upon pin or stud D4, let into boss A of framing or casing A, and it is kept in position by a cap D5, which may be just a shade conical or frusto-conoidal lengthwise, and is screwed onto extension of said pin, and a bracket or catch D6 takes over the llange of said cap D5 to fasten said cap to the lever D, so that an unscrewing of said cap D5 will lift the lever asawholefrom the lower frame or casing A. To the boss D3 under the rear extension of the lever an antifriction loose roller D7 is fixed to bear against the back of the pin or stud D, The comb F is fixed to framing or case A by screws F', as well understood, and the cutter E, being placed thereon, pintle F on the widened part of the nose or end of the lever D takes into holes or orifices E in said cutter. Under the actual nose D2, which rests upon the center blade of the cutter, is placed a spring E2,

reaching transversely to the outer blades and distributing the pressure of the nose D2 over the whole of said cutter. The tension-spring G is fastened to the lever D by a screw G', and it carries at its rear two rollers G2, taking against the frusto-conoidal cap D5. The upper casing or cover A2 of the machine is hinged at A3, and is fastened when closed by a spring or clip, as well understood. In the upper surface is orifice or slot A4 (through which screw G may be regulated without removing the cover) and orifice or hole A5, through which a driver or wrench may be passed to screw and unscrew the cap D5, the end of which cap has an elastic holder-say a spring having a V-tooth-taking into corresponding grooves.

In operation compressed air or other fluidpressure being conveyed by flexible piping from an accumulator or source of power to port B it passes into cylinder B, and, obtaining ingress to the unlled part C10 of the IOC spaces C, it spreads the wings or leaves C8 to form a tight joint against the inside periphery of cylinder B, as shown in Fig. 2, and

these take the pressure of the compressed air behind them and thus revolve the ring C6.

The air then escapes through discharge-holes and each Wing or leaf is gradually closed by working on the encroachment B3 B4 until it again passes into the entrance-port, when it i again spreads and takes its quota of press` nre. This ring C6 in turn revolves holder C and the spindle C. The cranlcpin C2 having rotary motion and the roller C3 having free vertical movement in jaw D', the lever D is vibrated or reciprocated and 'gives the necessary motion to the cutter E above the comb F. The tension is regulated by means of a screw-driver on screw G', which tightens the end of lever G, carrying the rollers G2 on the surface or cone surface ot' cap D5 and causes the end `of said spring to press more heavily upon the nose D2 of lever D.

To remove the cutter for sharpening, dac., the screw-driver is inserted into the head of cap D5 and turns such cap upon the screw of stud D4, causing the cap to travel `up said screw and by reason of connection D6 to lift the lever D and pintles D clear of the cutter, which will then slide out, and after being sharpened, duc., may be replaced and cap screwed down again, the whole operatontaking place Without interfering with `the regulation of the tension.

Having now particularly described and explained the nature ot' my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In a sheep-shearing machine, the combination, with the shaft C, of the lever D and 4o cutters E, cylinder B, having inlet and outlet orts said cvlinderhavimr a frust-o-s herical p 5 u b inner periphery, and the annulus C in said cylinder and having Wings C8 pivoted thereon, the holes or basins (1min said annulus adapted to be engaged by and partly covered by wings C8, substantially as set torth.

2. In a sheep-shearing machine, the combination, with the boss D3 on lever D, of the pin D4, engaging boss A and passing through said boss D3, and screw-threaded flanged cap D5, engaging said pin D4 and engaged by arm D6 on lever D, substantially as set forth.

3. In a sheep-shearing machine, the combination, with the boss D3 on lever D, of the anti-friction roller DT on said boss and bearing on pin D4, said pin passing through boss D3, the partly cone-shaped interiorly-screwthreaded cap D5, adapted to engage `the upper screw-threaded end of pin D4, the pin G', engaging leverD and having thereon spring G, and rollers G2 on theinner end of said spring, said rollers bearing on said `cap D5, substantially as set forth.

Il. In sheepshearing lnachines of the class set forth, the combination and arrangement, with a vibrating lever D, of a pivotal stud or pin D4, a cap D5, catch or connection D, and orifices A4 and A5, substantially as herein described and explained, and as illustrated in the drawings.

5. In sheep-shearing inachinesof the class set forth, the combination and arrangement, with a lever D, having pivotal screw or stud D4, of a cap D5 and a tension-spring G, having end rollers G2 and regulating-screw G', substantially as herein described and explained, and as illustrated in the drawings.

ALFRED MELCI-IIOR. llfitnesses:

FRED WALSH,

Fcl. Anst. Ins/5., P. A. THOMAS JAMES WARD. 

